BD 42
INDOOR / OUTDOOR BIDIRECTIONAL SOUND PROJECTOR
DESCRIPTION
BD 42 sound projectors are elegant and
suitable for sound distribution in very large
and noisy environments (e.g. railway stations,
underground, car parks, factories,
warehouses, shopping centres, etc..).
BD 42 sound projectors can be installed both
indoor and outdoor (IP code: IP 55). These
have a cylindrical plastic body with an U
bracket support for the installation and
include: 2 dual cone loudspeakers (externally
protected by grilles). A transformer for 100 V
constant voltage lines, with the possibility to
set the power during the installation. A low
impedance input (4 O) is available.
FEATURES
• It's ideal for train stations, underground stations, car parks, factories, warehouses, and PA systems in
general
• Bidirectional sound projector with double loudspeaker, characterized by high acoustic performance,
excellent design and compact dimensions
• IP55 protection, suitable for outdoor use
• 2 x 5" diameter extended range twin-cone loudspeaker
• Built-in multi-tapped transformer for 100 V constant voltage connection
• Equipped with aluminium "U" bracket. Body in ABS grey RAL 7035 with metal grill
DATASHEET
TECHNICAL SPECIFICATIONS
Acoustical specifications
Frequency Response (-10dB):
130 Hz ÷ 15000 Hz
Max SPL @ 1m:
102 dB
System Sensitivity:
91 dB
Power section
Nominal Impedance (ohm):
4 ohm
Power Handling:
12 W RMS
Peak Power Handling:
48 W PEAK
Recommended Amplifier:
24 W
Transducers
Fullrange:
2 x 5.0''
Input/Output section
Input connectors:
Cable
Output connectors:
Cable
Constant Voltage Transformer:
100 V
Power selection 1 (100 V):
12 W - 833 ohm
Power selection 2 (100 V):
6 W - 1667 ohm
Standard compliance
IP protection grade:
IP 55
CE marking:
Yes
Physical specifications
Cabinet/Case Material:
ABS
Hardware:
U bracket
Grille:
Aluminium
Color:
Grey - RAL 7035
Size
Depth:
200 mm / 7.87 inches
Diameter:
138 mm / 5.43 inches
Weight:
1.66 kg / 3.66 lbs
Shipping informations
Package Height:
290 mm / 11.42 inches
Package Width:
160 mm / 6.3 inches
Package Depth:
190 mm / 7.48 inches
Package Weight:
1.95 kg / 4.3 lbs
PART NUMBER
• 13000247
BD 42
EAN 8024530006907
DATASHEET
RCF products are continually improved. All specifications are therefore subject to change without notice.
135 mm
138 mm
145 mm
30 mm 30 mm
200 mm
DRAWINGS
DATASHEET
100 1000 10000
Frequency (Hz)
60
70
80
90
100
110
dB SPL
20
Response 1W/1m
100 1000 10000
Frequency (Hz)
1
10
100
Total Q
0
2
4
6
8
10
12
14
16
18
20
Directivity index Di, dB
Directivity Index and
-25
-20
-15
-10
-5
0
5
Attenuation in dB
Vertical +10 degrees
Vertical +20 degrees
Vertical +30 degrees
Vertical +40 degrees
Vertical +50 degrees
Vertical +60 degrees
Normalized Vertical o-axis Response. Above the bo
100 1000 10000
Frequency (Hz)
0
30
60
90
120
150
180
210
240
270
300
330
360
Coverage Angle (Deg.)
Horizontal Beamwidth (1/3 Octave)
Vertical Beamwidth (1/3 Octave)
Beamwidth vs. Frequenc S
100 1000 10000
Frequency (Hz)
-30
-25
-20
-15
-10
-5
0
5
Attenuation in dB
Horizontal ±10 degrees
Horizontal ±20 degrees
Horizontal ±30 degrees
Horizontal ±40 degrees
Horizontal ±50 degrees
Horizontal ±60 degrees
Normalized Horizontal o-axis Response
100 1000 10000
Frequency (Hz)
-30
-25
-20
-15
-10
-5
0
5
Attenuation in dB
Vertical -10 degrees
Vertical -20 degrees
Vertical -30 degrees
Vertical -40 degrees
Vertical -50 degrees
Vertical -60 degrees
Normalized Vertical o-axis Response. Below the box
DATASHEET
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
315
250
200
Horizontal 1/3 Octave Polar S
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
150°
120°
180°
210°
240°
270°
300°
330°
0°
30°
60°
90°
315
250
200
Vertical 1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
2500
2000
1600
Horizontal 1/3 Octave Polars
S
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
150°
120°
180°
210°
240°
270°
300°
330°
0°
30°
60°
90°
2500
2000
1600
Vertical 1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
630
500
400
Horizontal 1/3 Octave Polar S
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
150°
120°
180°
210°
240°
270°
300°
330°
0°
30°
60°
90°
630
500
400
Vertical 1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
5000
4000
3150
Horizontal 1/3 Octave Polars
S
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
150°
120°
180°
210°
240°
270°
300°
330°
0°
30°
60°
90°
5000
4000
3150
Vertical 1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
1250
1000
800
Horizontal 1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
150°
120°
180°
210°
240°
270°
300°
330°
0°
30°
60°
90°
1250
1000
800
Vertical 1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
10000
8000
6300
Horizontal 1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
150°
120°
180°
210°
240°
270°
300°
330°
0°
30°
60°
90°
10000
8000
6300
Vertical 1/3 Octave Polars
HORIZONTAL 1/3 POLAR PLOT
VERTICAL 1/3 POLAR PLOT
DATASHEET
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